/*
 * Copyright 2006 Robert Burrell Donkin
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */ 
package rat.document;

import java.util.Iterator;

/**
 * Collects documents.
 * May contain subcollections.
 */
public interface IDocumentCollection extends ILocation {

	/**
	 * Iterates <code>IDocument</code>'s contained.
	 * @return <code>Iterator</code>, not null
	 */
	public Iterator documentIterator();
	
	/**
	 * Iterates <code>IDocumentCollection</code>'s contained.
	 * @return <code>Iterator</code>, not null
	 */
	public Iterator subcollectionIterator();
}
